1. A substance which allows visible light to pass through freely is . A. opaque B. reflective C. transparent D. translucent2. A substance can be opaque to certain wavelengths of electromagnetic radiation, but transparent to others. A. True B. False
3. _ is when either the vertical or the horizontal component of light waves is eliminated.

A. Refraction
B. Scattering
C. Transmission
D. Polarization

Answers

Answer 1

Answer: 1. Transparent
2. True
3. Polarisation

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How do you calculate an
object's displacement?

Answers

Answer:

Wecanuseequationsofmotion

$s = ut + (1)/(2) at {}^(2)$

$v {}^(2) = {u}^(2) + 2as \:$

Answer:

Displacement can be calculated by measuring the final distance away from a point, and then subtracting the initial distance. Displacement is key when determining velocity (which is also a vector). Velocity = displacement/time whereas speed is distance/time.

Explanation:

Choose the correct answer. The cord you use to plug in an electric lamp has an outer protective covering made of rubber or plastic because, unlike most metals, neither rubber nor plastic is a good ______________ of electricity.A) hypothesis

B) force

C) energy

D) conductor

Answers

D) conductor of electricity

When a squid pushes against the water, the squid moves forward because the ______________ pushes against the _______________.

Answers

Answer:

water pushes against the squid

If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?

Answers

V = Voltage in the circuit = 24 Volts

i = Current flowing in the circuit = 2 A

P = Total power dissipated in the circuit.

Total Power dissipated in a current carrying circuit is given as

P = i V

inserting the above values of the current and voltage in the above equation , we get

P = (2 A) (24 V)

P = (2 x 24) (AV)

P = 48 Watt (Since Ampere -Volt = watt)

maybe you can divide the volts its twelve if you do that but itll show you how much to double it by

Light has properties of both a particle and a wave. true or false

Answers

true light has both the properties

A baseball player runs 27.4 meters from thebatter’s box to first base, overruns first base by
3.0 meters, and then returns to first base.
Compared to the total distance traveled by the
player, the magnitude of the player’s total
displacement from the batter’s box is
(1) 3.0 m shorter (3) 3.0 m longer
(2) 6.0 m shorter (4) 6.0 m longer

Answers

Distance is a measure of the length of space covered over a certain period of time. While displacement is the change in position of an object from its starting point. Displacement is 6.0 meters shorterthan distance.

Starting position = batter'box

Batter's box to first base = 27.4 meters

Distance beyond first base = 3 metres

Final position = first base

Total distance covered :

(Batter's box - > first base) + (beyond first base) + (return to first base)

(27.4 + 3 + 3) = 33.4 meters

Total Displacement :

(Batter's box - > first base) + (beyond first base) - (return to first base)

(27.4 + 3 - 3) = 27.4 meters

Difference in magnitude of Distance and Displacement :

33.4 - 27.4 = 6.0 meters

Therefore, displacement is 6m shorter

Learn more :brainly.com/question/8283882

Answer:

(2) 6.0 m shorte.

Explanation:

Total distance = Distance from batter’s base to first base + Distance covered in overrunning + Distance covered in returning to first base

Total Distance = 27.4 + 3 + 3 = 33.4 m

Total displacement = Displacement from batter’s base to first base + Displacement covered in overrunning + Displacement covered in to returning first base

The 2nd and 3rd term will have same magnitude but opposite direction so, they will cancel out each other. Hence,

Total Displacement = 27.4 m

Hence, displacement will be 6.0 m shorter than distance.

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